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Mexican Seismic Alert System

The Mexican Seismic Alert System (Spanish: Sistema de Alerta Sísmica Mexicano or SASMEX) is the earthquake warning system covering portions of central and southern Mexico. It currently provides up to 60 seconds' warning of earthquakes to Mexico City, Acapulco, Chilpancingo, Morelia, Puebla City, Oaxaca City, Guadalajara, Colima and Toluca.

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Accelerometer

An accelerometer is a device that measures acceleration forces.

Earthquake warning system

An earthquake warning system is a technological tool that is designed to provide advanced warning to individuals and communities about an impending earthquake.

Mexico City

Mexico City is the capital and largest city of Mexico.